Mr Egberongbe of Chorlton was unlocking his workplace's gates when carjacker Howell, 18, jumped into his victim's vehicle. In the struggle that followed, Mr Egberongbe was pulled under the wheels of his Toyota Starlet as the vehicle drove over him. Days later the much-loved family man died of his injuries.

At Manchester Crown Court, Howell was jailed for eight years for manslaughter, one year for an unrelated robbery and four months for an assault which occurred just 30 minutes before the killing. He will serve nine years in total.

Mr Egberongbe leaves behind a devastated family who paid tribute to the 64-year-old community 'role model'.

Wife, Milicentsaid: "Sikiru was a wonderful husband, father and grandfather and we all feel a great loss and sadness since his death.

"He is sadly missed by all his friends and was a great role model for so many people.

"Whatever sentence is passed today will not bring my husband back and we will all have to live with his loss for the rest of our lives."

Mr Egberongbe was originally from Nigeria, but made Chorlton his home. He was employed as a security guard at the Cariocca Business Park in Miles Platting when he was attacked on June 2 this year.

Five days later he died at North Manchester General Hospital through chest and leg injuries.

Detective Superintendent John Kelly said: "This was a terrible, unprovoked attack on a man who was on his way to work.

"Christopher Howell attacked Mr Egberongbe without the slightest thought of the consequences of his actions. We welcome the custodial sentence imposed today but nothing can replace Sikiru's life and our thoughts are with his family at this difficult time."

Ninety minutes after the Toyota was stolen, it was involved in a collision on Berkshire Road in Miles Platting, although Howell was not responsible for the crash.

Howell of Reginald Street, Openshaw, admitted all three charges at Manchester Crown Court.

He was arrested by police 13 days after the killing and was originally charged with murder.

Howell struck as Mr Egberongbe left his car with the engine running as he unlocked the workplace gates. Mr Egberongbe tried to grab the thug as the driver's door was still open but the teenager began driving the car and his victim fell under the wheels.